| 摘要 |
PROBLEM TO BE SOLVED: To provide a bottomed bag-like container manufacturing method and apparatus wherein a bottom member is covered with the lower end opening part of a body member and the welded state of the body member and the bottom member can be beautifully finished. SOLUTION: A bottom member 20 is fitted in an expanding pawl 32C to be covered with the lower end opening part of a body member 10. Next, the expanding pawl 32C is outwardly expanded in its diameter direction by drawing a taper member 33 downwardly to outwardly expand the peripheral wall 22 of the bottom member 20 to bring the outer peripheral surface of the peripheral wall 22 and the inner peripheral surface of the lower end opening part of the body member 10 to a close contact state. Finally, a seal bar 41 moves toward the outer surface side of the expanding pawl 32c and the lower end opening part of the body member 10 and the peripheral wall 22 of the bottom member 20 are thermally welded over the entire peripheries of them in the state held between the seal bar 41 and the holding part 32 (expanding pawl 32c). |
